Improved yemt-plug



@with gratte genet ffirr.

ORAMEL N. WOOD, OF WINDSOR, ASSIGNOR TO D. M. SMITH, H. H. MASON, AND A.O. MASON, OF SPRINGFIELD, VERMONT.

Leners Patent No. 66,929, dans July 16, 1867.

IMPROVED VENT-PLUG.

TO ALL WHOM IT MAY CONOERN:

Be it known Ithat I, ORAMEL N. WOOD, of Windsor, in the county ofWindsor, and State of Vermont, have invented a new and improved Vent forCnsks, Barrels, dto.; and I do hereby decla-re that the following is afull, clear, and exact description thereof, which will enable othersskilled in the art to make and use the sume, reference being had to theaccompanying drawings, forming part of this specification.

This invention relates to a new and improved vent, designed to beinserted in casks or barrels containing liquids, to admit, when a liquidis to he drawn from a cash or hurrel, of atmospheric air entering thelatter in order that the liquid may flow freely through the faucet.

The object of the invention is to obtin a. simple, cheap, and eicientvent, which may be very readily applied, and operated with the greatestfacility. In the accompanying sheet of drawings- Figure 1 isa. sidesectional view of my invention.

Figure 2, a. detached inverted plan ofthe cap pertainingto the same.

Similar letters of reference indicate like parts.

A represents a metal tube, having a screw-thread, a, on the lower partof its exterior, and two projeetin arms b, by which the tube may bereadily screwed into o. barrel or cosk. On the upper part ot' the tube Athere is also a. screw-thread, c, on which a cap, B, is'fitted, providedwith an internal screw-thread, and with a handle, d, on its top for theconvenience of turning it. This cap B is grooved internally, as shownntc, four grooves (more or less) being cut or made the whole length of theinterioi` of the cap; the grooves being deeper than the internal screwso ns to form air-passages within the ccp. At the inner part of theinterior of the cap there is inserted a pcking,f, of leather 0r othersuitable material, which, when the cap is screwed fully down, e'ectuallyseals the upperend ofthe tube A and prevents the admission of air withinthe barrel or cask.

When it is' designed to drew liquid from the Cask or barrel the cap B isscrewed up, so that the packing f will be above the top of the tube A,and air will pass up through the grooves e into the top ot` the tube A,and thence into the Cask or barrel, allowing the liquid to ow freelythrough the faucet or spigot.

This vent may be applied to a cask or barrel in n. moment of time, 'andalso readily detached or removed therefrom when required, and may beconstructed at o small cost. I

Having thus described my invention, I claim as new, and desire to secureby Letters Patent- 'lhe tube A, provided with the external screw-threadsa a, and the cap B provided with a. packing, f, and an internalscrew-thread to it on the upper screw-thread c, and having grooves orair-passages c made-in it, all

arranged substantially as and for the purpose set forth.

ORAMEL N. WOOD.

Witnesses:

JOHN S. MARGY, JOHN M. FADDEN.

